RAN
RRU Redundancy Description
Issue
01
Date
2009-03-30
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Huawei Proprietary and Confidential Copyright © Huawei Technologies Co. !td
"#$ ""% "edundancy &escription
#'out This &ocu(ent
About This Document Author Prepared 'y Edited by Reviewed by Translated by Tested by Approved by
ssue 01 2009-03-304
)u )uhua +ang ,ian )u )uhua !iu ing and Tang +ening !iu /ong /ou /iing !i ,iang
&ate Date Date Date Date Date
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co. !td
2009-02-2* 2009-03-12 2009-03-11 2009-03-1 2009-03-1 2009-03-30
*
"#$ ""% "edundancy &escription
Contents
Contents 1 Change History..........................................................................1-3 2 Introduction............................................................................... 2-3 3 Technical Description.................................................................3-3 3.1 Trans(it &i5ersity 6 778..........................................................................................................................3-3 3.1.1 #uto(atic $ode 8perations n the Case of the aulty T) Channel..................................................3-3 3.1.2 #uto(atic $ode 8perations #fter the T) Channel is "estored.........................................................3-3 3.2 $o Trans(it &i5ersity....................................................................................................................................3-3 4 Implementation.........................................................................4-3 :.1 Trans(it &i5ersity 6 778..........................................................................................................................:-3 :.2 $o Trans(it &i5ersity....................................................................................................................................:-3 !!" !edundancy #arameters......................................................-3 *.1 &escription.....................................................................................................................................................*-3 *.2 ;alues and "anges......................................................................................................................................... .*-3 $ !e%erence Documents................................................................$-3
"#$ ""% "edundancy &escription
1 Change History
1
Change History
The change history pro5ides infor(ation on the changes in different docu(ent 5ersions.
Document and #roduct &ersions Table 1.1.1.I.1.1.1.1 &ocu(ent and product 5ersions
&ocu(ent ;ersion 01 2009-03-304
"#$ ;ersion 11.0
The a5aila'le ti(e of each feature is su'
eature change= refers to the change in the ""% redundancy. >ditorial change= refers to the change in the infor(ation that was inappropriately descri'ed or the addition of the infor(ation that was not descri'ed in the earlier 5ersion.
'1 (2'')-'3-3'* This is the docu(ent for the first co((ercial release of "#$11.0.
ssue 01 2009-03-304
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co. !td
1
"#$ ""% "edundancy &escription
* ""% "edundancy Para(eters
2
Introduction
De+nition # local cell is configured with two T) channels. f one T) channel is faulty the syste( auto(atically switches it to the other T) channel.
#urposes n certain re(ote areas the ""% (aintenance is difficult. n such cases ""% redundancy plays an i(portant role. ""% redundancy offers a stand'y T) channel to enhance the relia'ility and ro'ustness of the "#$ networ?. This feature reduces the period of ser5ice disruption caused 'y the T) channel fault and i(pro5es the ,o@. Thus the networ? co5erage of the ""% can 'e ensured.
#roduct &ersions Ta'le 2.1.1..1.1.1.1 lists the 5ersions of the products that support ""% redundancy. Table 2.1.1.I.1.1.1.1 ;ersions of the products supporting ""% redundancy Product
T@312>
Version
;100"010 or laterB
T@312#AT@312 #> ;100"010 or laterB
&@300 ;100"010 or laterB
T@3900AT@ 3900# ;200"010 or laterB
&@3900 ;200"010 or laterB
B The ;100"010A;200"010 or a later 5ersion supports ""% redundancy in the (ode of no T) di5ersity (ode. The ;100"011A;200"011 or a later 5ersion supports ""% redundanc y in T) di5ersity (ode.
Terms Table 2.1.1.I.1.1.1.1 Ter(s
Ter( &i5ersity reception ssue 01 2009-03-304
&efinition "adio reception in which a resultant signal is o'tained 'y Huawei Proprietary and Confidential Copyright © Huawei Technologies Co. !td
1
"#$ ""% "edundancy &escription Ter(
* ""% "edundancy Para(eters
&efinition co('ining or selecting of signals fro( two or (ore independent sources. These sources ha5e 'een (odulated with identical infor(ation-'earing signals 'ut (ay 5ary in their fading characteristics at any gi5en instant.
Intended Audience This docu(ent is intended for=
@yste( operators who need a general understanding of ""% redundancy. Personnel wor?ing on Huawei products or syste(s.
,etor /lements In0ol0ed The $etwor? >le(ents $>s4 in5ol5ed in ""% redundancy are listed in the following ta'le= Table 2.1.1.I.1.1.1.1 $>s in5ol5ed in ""% redundancy
%> D
$ode E
"$C E
7@C @er5er D
7+ D
@@$ D
@$ D
H!" D
NOTE
D F $> not in5ol5ed E F $> in5ol5ed %> F %ser >uip(ent "$C F "adio $etwor? Controller 7@C @er5er F 7o'ile @er5ice @witching Center @er5er 7+ F 7edia ateway @@$ F @er5ing P"@ @upport $ode @$ F ateway P"@ @upport $ode H!" F Ho(e !ocation "egister
ssue 01 2009-03-304
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3
3
Technical Description
""% "e(ote "adio %nit4 redundancy (eans that two T) channels are configured for the ""% in a cell. f a T) channel is faulty the syste( auto(atically switches it to the stand'y T) channel. &uring the switcho5er the ongoing ser5ices are disrupted and the logic cell is reesta'lished. ased on the cell configuration (ode ""% redundancy is classified into the following two (odes=
Trans(it di5ersity 6 778 7ultiple nput 7ultiple 8utput4 $o trans(it di5ersity
3.1 Transmit Di0ersity I +hen the trans(it di5ersity 6 778 (ode is used in the cell the syste( is auto(atically switched to the no trans(it di5ersity or non-778 (ode if a T) channel is faulty. +hen the T) channel is restored the syste( is auto(atically switched 'ac? to the trans(it di5ersity 6 778 (ode.
3.1.1 Automatic ,ode perations In the Case o% the 5aulty T6 Channel +hen the trans(it di5ersity is used in the cell the $ode perfor(s the following operations if a faulty T) channel is detected= tep 1
The $ode calculates the (aGi(u( a5aila'le trans(it power Ptot for the cells of which the trans(it di5ersity capa'ilities are changed. The a5aila'le power of the stand'y T) channel is the 'asis for the calculation. Ptot F 7aGi(u( a5aila'le T) power of the stand'y T) channel D T) power assigned for the
cells of which the trans(it di5ersity capa'ilities are not changed on the stand'y T) channel
tep 2
The $ode deter(ines again the (aGi(u( a5aila'le T) power for each cell of which the trans(it di5ersity capa'ility is changed. The $ode configures the T) power Pj for each cell of which the trans(it di5ersity capa'ility is changed on the T) channel Pj F 8riginal T) power of the cell D 3 d4. f Ptot D Pj I 0 the $ode assigns the re(aining power e5enly to the cells of which the trans(it
di5ersity capa'ilities are changed. The a5aila'le power of each cell howe5er (ust not surpass the (aGi(u( power originally configured for the cell. tep !
The "$C perfor(s the corresponding operations 'ased on the 5alue of "ell "apability Auto #andle witc$. f "ell "apability Auto #andle witc$ is not set to T%&DIVERIT'&ON&TO&O(( the "$C does not send the related co((and to the $ode. /ou can infer that the procedure is co(plete. f "ell "apability Auto #andle witc$ is set to T%&DIVERIT'&ON&TO&O(( and the power (eets the condition )a*Power+rnc, - )a*Power+node/, 0 ! d/ the "$C reuests the $ode to re-esta'lish the cell. The cell re-esta'lish(ent disrupts the ongoing ser5ices and the disruption period is less than 30s. The $ode does not delete the logical cell 'efore recei5ing the cell re-esta'lish(ent co((and fro( the "$C. End
3.1.2 Automatic ,ode perations A%ter the T6 Channel is !estored +hen the $ode detects that the nu('er of a5aila'le T) channels of the current cell 'eco(es 2 fro( 1 and the auto(atic $ode operations were triggered in the cell 'ecause of switcho5er fro( trans(it di5ersity to no trans(it di5ersity the $ode perfor(s the following operations= tep 1
#fter the trans(it di5ersity configuration specific to the cells is co(plete the $ode updates the a5aila'le (aGi(u( trans(it power for each cell of which the trans(it di5ersity capa'ility is changed.
tep 2
The "$C perfor(s the corresponding operations 'ased on the (essages reported 'y the $ode. f "ell "apability Auto #andle witc$ is not set to T%&DIVERIT'&O((&TO&ON you can infer that the procedure is co(plete. f "ell "apability Auto #andle witc$ is set to T%&DIVERIT'&O((&TO&ON the "$C perfor(s @tep 3.
tep !
or each cell of which T* Diversity "apability is Enable the "$C chec?s the di5ersity (ode configured for the cell. f the di5ersity (ode is acti5ated T% diversity indication F TRE4 and the power (eets the condition )a*Power+rnc, - )a*Power+node/, all the users in the cell are re(o5ed and the "$C reuests the $ode to re-esta'lish the cell with trans(it di5ersity. The cell reesta'lish(ent disrupts the ongoing ser5ices and the disruption period is less than 30s. f the di5ersity (ode is deacti5ated T% diversity indication F (A3E4 the cell is not reesta'lished. End
3.2 ,o Transmit Di0ersity n the (ode of no trans(it di5ersity a local cell is configured with two T) channels. 8f the two T) channels one is the acti5e channel and the other is the stand'y channel. The syste( triggers the cell re-esta'lish(ent if the acti5e T) channel is faulty. The resource assign(ent is perfor(ed on the stand'y T) channel and then the cell auto(atically switches the acti5e T) channel to the stand'y T) channel. The cell re-esta'lish(ent disrupts the ongoing ser5ices and the disruption period is less than 30s.
4
Implementation
The following descri'es the ""% redundancy i(ple(entation in two (odes.
4.1 Transmit Di0ersity I tep 1
#cti5ate the trans(it di5ersity capa'ility of the cell. efore ena'ling ""% redundancy you are reuired to acti5ate the cell trans(it di5ersity at the "$C. "un the co((and ADD4)OD "E33ETP at the "$C to chec? the 5alue of T% diversity indication which indicates the status of the trans(it di5ersity (ode in the cell. The 5alues and indications are as follows=
tep 2
T"%>= acti5ated #!@>= deacti5ated
@et the para(eter "ell "apability Auto #andle witc$. f the ""% is in trans(it di5ersity 6 778 (ode run the co((and ADD4)OD "E33A35O6IT"# at the "$C to set the para(eter "ell "apability Auto #andle witc$. The 5alues and indications are as follows=
T%&DIVERIT'&ON&TO&O(( trans(it di5ersity 'eco(ing not supported4
f the trans(it di5ersity is ena'led in the current cell and the para(eter "ell "apability Auto #andle witc$ is set to T%&DIVERIT'&ON&TO&O(( the cell reesta'lish(ent with no trans(it di5ersity auto(atically starts. T%&DIVERIT'&O((&TO&ON trans(it di5ersity 'eco(ing supported4 f the trans(it di5ersity is disa'led although already configured4 in the current cell and the para(eter "ell "apability Auto #andle witc$ is set to T%&DIVERIT'&O((&TO&ON the cell re-esta'lish(ent with trans(it di5ersity auto(atically starts. The a'o5e options can 'e selected at the sa(e ti(e. @electing an option indicates that the corresponding function is ena'led.
End
4.2 ,o Transmit Di0ersity The two T) channels can 'e configured on two ""%s 1T)4. n this case the two ""%s 1T)4 operate in acti5eAstand'y (ode. The two T) channels can also 'e configured on one ""% 2T)4. n this case the two T) channels operate in acti5eAstand'y (ode. The data configuration procedure for ""% redundancy is as follows= tep 1
Configure the sector. The sector with the ""% redundancy function reuires two T) channels. #ssu(e that two ""%s 1T)4 are used and su'rac?s 20 and 21 are used.
Two-way de(odulation (ode f the site operates in two-way de(odulation (ode run the following co((and to configure the sector= ADD SEC: STN=0, SECN=0, SECT=REMOTE_SECTOR, ANTM=2, DIVM=NO_TX_DIVERSITY, ANT1SRN=20, ANT1N=R0A, ANT2SRN=21, ANT2N=R0A;
n this case the ""%s in su'rac?s 20 and 21 reuire " interconnection. our-way de(odulation (ode or four-way econo(ical de(odulation (ode f the site operates in four-way de(odulation (ode or four-way econo(ical de(odulation (ode run the following co((and to configure the sector= ADD SEC: STN=0, SECN=0, SECT=REMOTE_SECTOR, ANTM=4, DIVM=NO_TX_DIVERSITY, ANT1SRN=20, ANT1N=R0A, ANT2SRN=20, ANT2N=R0B, ANT3SRN=21, ANT3N=R0A, ANT4SRN=21, ANT4N=R0B;
n this case the ""%s in su'rac?s 20 and 21 do not reuire " interconnection. tep 2
Configure the local cell. f the local cell reuires the ""% redundancy function run the following co((and to configure the local cell= ADD LOCELL: LOCELL=0, STN=0, SECN=0, SECT=REMOTE_SECTOR, CN1=MASTER, SRN1=20, SN1=0, CN2=MASTER, SRN2=21, SN2=0, ULFREQ=910, DLFREQ=10!0, MX"#R=430, $IS"M=FALSE;
+hen you configure ""% redundancy for the local cell set the ca'inet nu('er "N4 su'rac? nu('er RN4 and slot nu('er N4 for two power a(plifiers. f ""% redundancy is not configured for the local cell set the ca'inet nu('er "N4 su'rac? nu('er RN4 and slot nu('er N4 for one power a(plifier in the case of the (ode of no T) di5ersity. End
!!" !edundancy #arameters
.1 Description Table 7.1.1.I.1.1.1.1 ""% redundancy para(eter description
Para(eter &
#$T1$
#$T1@"$
#$T2$
#$T2@"$
#$T3$
#$T3@"$
#$T:$ #$T:@"$
&escription t is the $o. of the first antenna connectorJ There are one or (ore antenna channels in one sector. The nu('er of the channels euals antenna (agnitude. The antenna channels are identified 'y antenna connectors at the ca'inet top hereinafter referred to as Kantenna connectorK. @u'rac? $o. of #ntenna Channel1= There are one or (ore antenna channels in one sector. The nu('er of the channels euals antenna (agnitude. The antenna channels are identified 'y antenna connectors at the ca'inet top hereinafter referred to as Kantenna connectorK. t is the $o. of the second antenna connectorJ There are one or (ore antenna channels in one sector. The nu('er of the channels euals antenna (agnitude. The antenna channels are identified 'y antenna connectors at the ca'inet top hereinafter referred to as Kantenna connectorK.
@u'rac? $o. of #ntenna Channel2= There are one or (ore antenna channels in one sector. The nu('er of the channels euals antenna (agnitude. The antenna channels are identified 'y antenna connectors at the ca'inet top hereinafter referred to as Kantenna connectorK. t is the $o. of the third antenna connectorJ There are one or (ore antenna channels in one sector. The nu('er of the channels euals antenna (agnitude. The antenna channels are identified 'y antenna connectors at the ca'inet top hereinafter referred to as Kantenna connectorK. @u'rac? $o. of #ntenna Channel3= There are one or (ore antenna channels in one sector. The nu('er of the channels euals antenna (agnitude. The antenna channels are identified 'y antenna connectors at the ca'inet top hereinafter referred to as Kantenna connectorK. t is the $o. of the fourth antenna connectorJ There are one or (ore antenna channels in one sector. The nu('er of the channels euals antenna (agnitude. The antenna channels are identified 'y antenna connectors at the ca'inet top hereinafter referred to as Kantenna connectorK. @u'rac? $o. of #ntenna Channel:= There are one or (ore antenna channels
Para(eter &
&escription in one sector. The nu('er of the channels euals antenna (agnitude. The antenna channels are identified 'y antenna connectors at the ca'inet top hereinafter referred to as Kantenna connectorK. t refers to the (agnitude of antennas in the sector. &o not use it when #$T7 @ector Type is &istri'uted @ector. The algorith(s with the a'o5e 5alues represent are as follow= CellCapacity#utoHandle@witc T)L&;>"@T/L8$LT8L8= +hen T) &i5ersity is on to off the algorith(s of cell capacity auto handle is open. h T)L&;>"@T/L8LT8L8$= +hen T) &i5ersity is off to on the algorith(s of cell capacity auto handle is open. Ca'inet $o. of Power #(plifier1= Power #(plifier refers to the power C$1 a(plify unit in ""%. Ca'inet $o. of Power #(plifier2= Power #(plifier refers to the power C$2 a(plify unit in ""%. &;7 T) &i5ersity 7ode of @ector &!">, &! reuency Channel $u('er H@P7 High @peed 7o5e(ent 7ode of the !ocal Cell !8C>!! !ocal Cell & The (aGi(u( trans(it power of the local cell is the (aGi(u( output power at the antenna connector on the ca'inet top. The 5alue (ust stay 7)P+" within the 5alue range supported 'y the power a(plifierJ otherwise the local cell is una5aila'le.
@>C$ @>CT @$1 @$2 @"$1 @"$2 @T$ TG&i5ersitynd %!">, #$T1$
t is seuentially nu('ered in the site. %p to siG sectors can 'e configured to one site. t indicates type of the sector. @lot $o. of Power #(plifier1=Power #(plifier refers to the power a(plify unit in ""%. @lot $o. of Power #(plifier2=Power #(plifier refers to the power a(plify unit in ""%. @u'rac? $o. of Power #(plifier1= Power #(plifier refers to the power a(plify unit in ""%. @u'rac? $o. of Power #(plifier2= Power #(plifier refers to the power a(plify unit in ""%. t is the nu('er of the site. This para(eter indicates whether trans(ission di5ersity configuration of the cell is acti5ated. %! reuency Channel $u('er t is the $o. of the first antenna connectorJ There are one or (ore antenna channels in one sector. The nu('er of the channels euals antenna (agnitude. The antenna channels are identified 'y antenna connectors at the ca'inet top hereinafter referred to as Kantenna connectorK.
.2 &alues and !anges Table 7.2.1.I.1.1.1.1 ""% redundancy para(eter 5alues and para(eter ranges
Para(eter &
&efault ;alue
% ;alue "ange
#ctual ;alue "ange
%nit
"0# "0
$one
#$T1$
-
"0#Ca'inet $o.0# #nt4 "0Ca'inet $o.0 #nt4
#$T1@"$
-
20M2*:
20M2*:
$one
#$T2$
-
"0#Ca'inet $o.0# #nt4 "0Ca'inet $o.0 #nt4
"0# "0
$one
#$T2@"$
-
20M2*:
20M2*:
$one
#$T3$
-
"0#Ca'inet $o.0# #nt4 "0Ca'inet $o.0 #nt4
"0# "0
$one
#$T3@"$
-
20M2*:
20M2*:
$one
#$T:$
-
"0#Ca'inet $o.0# #nt4 "0Ca'inet $o.0 #nt4
"0# "0
$one
#$T:@"$
-
20M2*:
20M2*:
$one
#$T7
-
1single antenna4 2two antennas4 :four 1 2 : antennas4 T)L&;>"@T/L8$L T8L8 T)L&;>"@T/L8 LT8L8$
T)L&;>"@T/L8$ LT8L8 T)L&;>"@T/L8 LT8L8$
$one
$>
$ode $ode $ode $ode $ode $ode $ode $ode $ode
#&& C>!!#!8 $one "$C @+TCH8pt ional4
CellCapacit y#utoHand le@witch
-
C$1
7#@T> "
7#@T>"7aster ca'inet4
7#@T>"
$one
C$2
7#@T> "
7#@T>"7aster ca'inet4
7#@T>"
$one
&;7
C877 8$L78 &>
&!">,
-
C8778$L78&>Co ((on 7ode4 C8778$L78&>H H#!">,0.*A0.* #!">, 7ode4 0MN**3* 0MN**3*
77! Co((and #&& @>C7andato ry4 #&& @>C7andato ry4 #&& @>C7andato ry4 #&& @>C7andato ry4 #&& @>C7andato ry4 #&& @>C7andato ry4 #&& @>C7andato ry4 #&& @>C7andato ry4 #&& @>C7andato ry4
#&& !8C>!!8pt $ode ional4 #&& !8C>!!8pt $ode ional4
$one
#&& @>C8ptional $ode 4
$one
#&&
$ode
Para(eter &
&efault ;alue
H@P7
#!@> #&& !8C>! !4
% ;alue "ange
#!@> $ot @upport4 T"%> @upport4
#ctual ;alue "ange
#!@> T"%>
%nit
$one
!8C>!!
-
0M2N:3*:**
0M2N:3*:**
$one
7)P+"
-
0M*00
0M*0 step= 0.1 d
d
@>C$
-
0M*
0M*
$one
@>CT
">78T >L@>CT 8"#& & @>C4 -#&& !8C>! !4
">78T>L@>CT8" "e(ote @ector4 &@TL@>CT8" &istri'uted @ector4
">78T>L@>CT8" &@TL@>CT8"
$one
@$1
-
0
0
$one
@$2
-
0
0
$one
@"$1
-
20M2*:
20M2*:
$one
@"$2
-
20M2*:
20M2*:
$one
@T$
-
0M:29:9N29*
0M:29:9N29*
$one
TG&i5ersity nd
T"%> #!@>
T"%> #!@>
$one
%!">,
-
0MN**3*
0MN**3*
$one
-
"0#Ca'inet $o.0# #nt4 "0Ca'inet $o.0 #nt4
"0# "0
$one
#$T1$
77! $> Co((and !8C>!!7a ndatory4
#&& !8C>!!8pt $ode ional4 #&& !8C>!!7a $ode ndatory4 #&& !8C>!!7a $ode ndatory4 #&& @>C7andato $ode ry4 #&& @>C8ptional $ode 4 #&& !8C>!!8pt ional4 #&& !8C>!!8pt ional4 #&& !8C>!!7a ndatory4 #&& !8C>!!8pt ional4 #&& @>C7andato ry4 #&& C>!!@>T%P 7andatory4 #&& !8C>!!7a ndatory4 #&& @>C7andato ry4
$ode $ode $ode $ode $ode "$C $ode $ode
The De8ault Value colu(n is 5alid for only the optional para(eters. The K-K sy('ol indicates no default 5alue.
$
!e%erence Documents
The following lists the reference docu(ents related to the feature= 1. asic eature &escription of Huawei %7T@ "#$11.0 ;1.* 2. 8ptional eature &escription of Huawei %7T@ "#$11.0 ;1.*
